This assembly set includes a coordinated selection of materials for the installation of electrical supply lines and protection devices. Suitable for air conditioning systems, split units, control cabinets or other technical installations with single-phase 230-volt power supply. A service socket for outdoor maintenance work is included in the set. The set provides all essential installation components typically required for a standards-compliant electrical supply line and equipment protection. The installation itself is not part of this offer. Assembly Set Variants Variant 1 – Basic installation Material configuration for a standard installation of electrical supply lines including necessary protection and maintenance isolator switch. Typical space requirement in the existing distribution board: 2 TE for single-phase circuits (230 V) 5 TE for three-phase circuits (400 V) in mixed distribution boards Material package includes: [ART-XXXX] Installation cable / electrical supply line [ART-XXXX] Miniature circuit breaker (MCB) [ART-XXXX] Residual current device (RCD) [ART-XXXX] Maintenance / service isolator switch for outdoor units [ART-XXXX] Outdoor maintenance / service socket [ART-XXXX] Cable glands [ART-XXXX] Cable protection / installation materials Variant 2 – Installation with 2-pole surge protection Extended material configuration with additional protection against power disturbances and voltage surges. Typical space requirement in the existing distribution board: 7 TE for single-phase circuits (230 V) in three-phase distribution boards 10 TE for three-phase circuits (400 V) Material package additionally includes: [ART-XXXX] Surge protection device (SPD) for network and equipment protection, 2-pole [ART-XXXX] Installation components for integrating the surge protection Variant 3 – Installation with 4-pole surge protection Extended material configuration with additional protection against power disturbances and voltage surges. Typical space requirement in the existing distribution board: 7 TE for single-phase circuits (230 V) in three-phase distribution boards 10 TE for three-phase circuits (400 V) Material package additionally includes: [ART-XXXX] Surge protection device (SPD) for network and equipment protection, 4-pole [ART-XXXX] Installation components for integrating the surge protection Notes on space requirements and installation Sufficient space must be available in the existing distribution board for the required protection components when using this assembly set. The specified modular units (TE) serve as guidance for assessing the space requirement. If the available space is insufficient, installation of a separate small distribution board or sub-distribution board may be required. This material is not part of this assembly set. Installation of the included components may only be carried out by qualified electrical specialists in accordance with applicable electrical safety regulations. The delivery scope does not include technical fire protection. If required, it must be planned and installed separately. Typical areas of application Control cabinets Split air conditioning units Small heat pumps Ventilation systems Technical installations with 230-volt power supply